Chemical Background For Biology
mattymatt121
ChemicalBackgroundforBiologydraft11.docxChemical Background for Biology
Name _________________________
10 Points Each
1. Define: Element. How is an element designated?
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2. For each of the symbols, give the name of the element
Symbol Element
C ____________________
K ____________________
O ____________________
Ca ____________________
Mg ____________________
For each element, give the chemical symbol
Element Symbol
Hydrogen ____________________
Chlorine ____________________
Phosphorus ____________________
Gold ____________________
Flourine ____________________
3. Define: Atomic Number, Mass Number.
Atomic number: ________________________________________________________________________________________________________________________________.
Mass number: ________________________________________________________________________________________________________________________________.
4. Give the atomic number and mass number for the following examples:
Atomic number Mass number
8O16 __________ __________
12Mg24 __________ __________
19K39 __________ __________
16S32 __________ __________
20Ca40 __________ __________
5. Give the number of protons, the number of neutrons, and the number of electrons for the above examples.
Protons Neutrons Electrons
8O16 __________ __________ __________
12Mg24 __________ __________ __________
19K39 __________ __________ __________
16S32 __________ __________ __________
20Ca40 __________ __________ __________
6. Explain the difference between a molecule and a compound.
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7. Draw the Bohr diagram of each atom:
8O16 17Cl35
8. Define: Ion, Isotope.
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9. Define: Ionic bonding, Covalent bonding.
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10. Explain the difference between inorganic compounds and organic compounds.
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